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United States Patent | 6,112,786 |
Otsuka ,   et al. | September 5, 2000 |
When scarfing the end portion of a plate-like material with irregular deformations or undulations, such as distortions, undulations and warps, the undulations are successively corrected flat and the flattened end portion is scarfed by a rotary cutter to form a highly precise scarfed surface. When the end portion of the plate-like material 3 is scarfed by the rotary cutter 5, the pressing member 11 presses, while the cutting operation proceeds, at least a part of the surface of at least that portion of the plate-like material 3 which is to be cut away as a chip 17 at a position near the blades 5b of the rotary cutter 5 on a downstream side of the rotary cutter with respect to a rotary cutter movement direction, the surface of the plate-like material 3 pressed by the pressing member 11 being opposite the other surface held in contact with the cutter receiving table 7.
Inventors: | Otsuka; Toshiyuki (Obu, JP); Yamamoto; Kiichi (Obu, JP) |
Assignee: | Meinan Machinery Works, Inc. (Obu, JP) |
Appl. No.: | 332021 |
Filed: | June 14, 1999 |
Jun 16, 1998[JP] | 10-186866 |
Current U.S. Class: | 144/363; 144/2.1; 144/90.1; 144/91; 144/136.1; 144/329; 269/55; 409/201; 409/205 |
Intern'l Class: | B27M 001/00; B27L 003/00 |
Field of Search: | 144/2.1,134.1,329,346,363,371,90.1,91,91.2 83/581 409/163,183,189,197,201,204,205 269/25,59,56 |
5372168 | Dec., 1994 | Minami | 144/2. |